查询词典 circular arc

In order to further extract open contour segment, such as circular arc, from a closed contour, a technique that combines parameters identification and contour vertices extraction was put forward.

为了抽取开放的规则轮廓段，提出了特徵参数识别和特徵轮廓抽取交互进行、有机结合的技术。为了抽取开放的自由曲线段，提出了基于转角映射的特徵连接点辨识技术。

The theories of third order contact analysis have been successfully applied in theoretical research and practice in the manufacture of circular-arc bevel gears with good effect.

三阶接触分析理论在弧齿锥齿轮的理论研究和加工实践中都取得了很好的效果，而这种理论与锥齿轮的齿制是无关的，本文的研究工作就是围绕如何将三阶接触分析理论应用到延伸外摆线锥齿轮的加工中这一核心问题展开的。

Based on the solution, the effects of the incident frequency and incident angle of plane P waves on the dynamic response of circular arc alluvial valley are discussed.

数值结果表明，入射波的频率和入射角度对圆弧形沉积谷地场地反应有重要影响。

On the basis of nonlinear FEA code ANSYS/LS-DYNA, rail rolling process of universal rolling unit were simulated by 3D large deformation thermal-mechanical coupled elastic-plastic FEM. And the deformation shape of the work piece, deformation parameters and cross dimensions for each pass were obtained and stress,stain distribution and metal flow in rolling process of typical passes were analyzed in detail. Analyzed typical pass stress and strain distribute, rolling stress and deforming in universal pass last groove in detail,discussed the effect regularity of residual stress distribution and size to safely using rail, detailed to expound universal pass to railhead tread circular arc process.

本文基于ANSYS/LS-DYNA非线性显式有限元软件，以60kg/m的重轨为研究对象，采用全三维弹塑性热力耦合的有限元方法研究了重轨在万能轧机组中的变形过程，得到了轧件在孔型中的延伸情况、各道次轧件的变形参数，分析了典型道次的应力、应变分布，并详细分析了全万能成品孔型中轧件受力和变形情况，讨论了残余应力的分布及大小对钢轨安全使用的影响规律，详细地阐述了全万能成品孔型对轨头踏面圆弧的加工过程。

In this paper,the construction of parametric rational circular arc spline is introduced briefly,the recurrence relation bet.

文章首先介绍参数有理圆弧样条的构造，并建立相邻两分段点切向量之间的递推关系式，然后再利用此关系式给出了此参数有理圆弧样条保形性的充要条件，为实际应用提供了理论依据。

The dry Reed Switch pipe swith is arranged on the socket and is in the circular arc line on which the magnet swings following the swinging wing.

所述的干簧管开关安装在底座上且位于磁铁在随摆翼摆动的圆弧线上。

Row of circular arc steel pipe were used to support respectively in the steel pipe support longitudinal base and the crown on the skewback, causing the steel centering and the steel pipe support combines the overall rigid arch centering, both common stress, has enlarged the arch centering application span and the steel pipe support altitude effectively.

采用了在钢管支架纵向底部和顶部各设置4排圆弧钢管支撑于拱座上，使钢拱架与钢管支架组合成整体刚性拱架，两者共同受力，有效加大了拱架的应用跨径和钢管支架的高度。

The placer gold under the lake has high purity,so we called it Golden Lake.the area of the Golden lake is about 136 square kilometers among which the water area is about 26 square kilometers.it's 62 kilometers long,so we also called it "vast Golden lake".the shape of the lake is circular arc,it looks like a crescent.so people feel it is not very big.but at the lower reaches of lake ,it's 2 kilometers wide 5 kilometers long, so-called "ten mile slack water".and we will go there later.

这个湖底下沙金的含量非常高，因为湖底有黄金而取名为大金湖。大金湖的面积有136平方公里，其中水域面积有26平方公里。全长62公里，所以今天我们游览的金湖又有"百里金湖"之称。金湖整个形状呈一个圆弧形，看起来像一轮新月。所以大家觉得这个大金湖看起来不是很大。湖面最宽处是在下游，东西宽2公里，南北长5公里，号称"十里平湖"。呆会儿我们就会到那转一转。

After introducing failure model of PCPCF, the dissertation has deduced the circular arc method formula of PCPCF's total stability analysis. The analysis shows that PCPCF can improve the stability of natural foundation. At the same time, the dissertation has also perfected stability calculation method of composite foundation which has caverns.

介绍了复合地基的破坏模式之后，推导了素混凝土桩复合地基整体稳定性分析的圆弧法公式，分析表明素混凝土桩复合地基有利于提高天然地基的抗滑稳定性；另一方面完善了洞室复合地基稳定性的计算方法。

The orbits of the Maba Man are approximately a circular-arc, which is similar to the regular neandertal men.

马坝人的眼眶约呈圆弧形，与一般的尼人相似。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。